Decorative lamp



FIG. 1 is a perspective view of the decorative lamp seen from its front showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a plan view thereof;

FIG. 6 is a left-hand side view thereof;

FIG. 7 is a right-hand side;

FIG. 8 is a perspective view of a second embodyment seen from its front showing my new design;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a plan view thereof;

FIG. 13 is a left-hand side view thereof; and,

FIG. 14 is a right-hand side view. 

The ornamental design for the decorative lamp, as shown and described. 